Concrete form assembly



Feb- 18, 1959 D. M. REDDING ETAL CONCRETE FORM ASSEMBLY siled uarch 20, 1967 Sheet INVENTORS UAV/o M. H500/N6 BY REX G. H500/NG Feb. 18, 1969 D. M. REDDING ETAL. 3,428,287

CONCRETE FORM ASSEMBLY Filed March 20, 1967 Sheet 2' of 2 F l G. INVENTORS DAV/D M. REDDING BY REX G. REDD/NG mw 75 mw@ United States Patent O 3,428,287 CONCRETE FORM ASSEMBLY David M. Redding, 13908 Powers Road, Poway, Calif.

92064, and Rex G. Redding, 5252 N. Thorn, San Diego,

Calif. 92105 Filed Mar. 20, 1967, Ser. No. 624,489

U.S. Cl. 249--13 10 Claims Int. Cl. B28b 7 22 ABSTRACT OF THE DISCLOSURE A concrete form assembly for pouring raised concrete having sections of first and second sides, each side being coupled to a plurality of wheels which are only in rotatable contact when the sides are pulled away from poured concrete and being rolled to the next location for pouring in the next concrete section, one side of each section having a novel turn-buckle coupling adjustment for coupling it to a set of wheels, and a novel tapered spreader bolt for coupling the iirst and second sides of each section prior to the pouring of concrete.

Background of the invention The present invention relates to a concrete form assembly and more particularly to a concrete form assembly which is easily movable along successive sections of concrete to be formed.

Prior art concrete form assemblies have been plagued by many disadvantages. One main disadvantage lies in the inherent difficulty in breaking down and setting up the steel forms to complete successive concrete sections. This is not only time consuming, but is a hardship on the men setting them up due to the weight and size of the forms. Another main disadvantage of the prior art concrete form assemblies is in the difculty encountered in breaking out the forms once the concrete is poured, i.e., they are generally hammered off, resulting in damage to the forms which are, of course, transmitted to the succeeding sections poured into these forms. A third disadvantage in the steel forms twas in the distortions due to rusting and pitting, which also resulted in a relatively short useful life of the forms.

According to the invention, a concrete form assembly is provided which is assembled in sections having two sides to each section. Each section is coupled to a plurality of wheels which are inclined off the surface when the forms are positioned for pouring. When the forms are broken out away from the concrete section having set, the wheels then make contact and the entire assembly can be rolled to the next section to be poured. Fiberglas plates are utilized having a reinforcement backing rib section on each side in the interest of reducing the overall weight and ease of breaking out after the concrete is set. A novel turn-buckle assembly is utilized to couple the inner side of each section to its wheels and a novel tapered spreader bolt has been developed for spacing the two sides of each section of the form assembly together prior to pouring the concrete.

An object of the present invention is the provision of an improved concrete form assembly which is easily movable along sections of concrete to be poured.

Another object is to provide an improved guard rail concrete form assembly in which the outside section thereof cannot fall off the surface on which the guard rail is being constructed,

A further object of the invention is the provision of a concrete form assembly utilizing Fiberglas sheets as the form plates.

Yet another object of the invention is the provision of an improved concrete form assembly which is inexpensive to manufacture, convenient lto use and extremely durable.

A still further object of the invention is to provide an improved tapered spreader bolt for use in concrete form assemblies.

Yet another object of the invention is the provision of a novel turn-buckle assembly for use in concrete form assemblies.

Other objects and many of the attendant advantages of this invention will be readily appreciated as 4the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings in which like reference numerals designate like parts throughout the gures thereof and wherein;

FIG. l is a perspective of several sections of guard rail in various stages of completion utilizing the novel concrete form assembly of the present invention;

FIG. 2 is an elevational view and cross-section taken along lines 2-2 of FIG. 1;

FIG. 3 is an elevational View and cross-section taken along lines 3-3 of FIG. 1;

FIG. 4 is a cross-sectional View of the turn-buckle of FIGS. 1, 2 and 3; and

FIG. 5 is a cross-sectional view of the tapered spreader bolt of FIGS. 1, 2 and 3.

Referring to FIGS. 1, 2 and 3, three sections of a concrete form assembly are shown at 11, 12 and 13, and a section of set guard rail 14. The guard rail form assembly shown at 11 is in the position for the concrete to be poured or to be setting, as shown, and the section shown at 13 has just been broken away from the set concrete section 14. Each of the form assemblies has an outer side 16 which is coupled to a bottom section 17 with a resilient sealing strip 18 therebetween. A pair of wheels 19 is coupled to the bottom section 17 of each of the back sections.

The front sections 21 have a supporting frame 22 running completely around their peripheries and a plurality of supporting ribs 23 vertically connecting the supporting frame. A wheel 24 is connected to one of the supporting frames in each front section. At each end of the front section, a telescoping supporting member 26 is coupled to a telescoping axle 27 via a turn-buckle 28. A wheel 28 is rotatably attached to the end of each telescoping axle 27 and rides within a track 31 which is xedly attached to surface 32 by nailing. Each of the front and back sections of broken away section 13 is further coupled by an adjustable supporting rod 34.

Referring to FIG. 4, turn-buckle 28 has a lirst section 41 which is slidably received by coupling member 26 and attached thereto by bolt 42 through aperture 43 or 44. First section 41 is slidably received also by second section 4.6 of turn-buckle 28 which is rotatably coupled to shaft 47. Shaft 47 has a threaded extension 48 which threadably receives a nut 49 which is fxedly attached and terminates section 41. A resilient bellows 51 is attached to section 46 by a band 52 which effects an hermetic seal at one end thereof and coupling member 26 by a band 53 which effects an hermetic seal at the other end thereof. The assembly terminates in coupling plates 54 and S6. The entire assembly is hollow and is preferably iilled with grease.

Referring to FIG. 5, tapered spreader bolt shown generally at 33 has a threaded section 34 which is attached to a washer hexagon head assembly 36 at one end and has a tapered aluminum plug section 37 tapering from hexagonal head and washer assembly 36 toward end 38 of threaded section 34.

Operation Referring back to FIG. 1, section 11 of the concrete form assembly is in its upright and spaced position for the pouring of concrete. The concrete is shown just after pouring and prior to setting. It can be seen that in the adjustment of the two forms, the tapered spreader bolts 33 couple the front and back sections together, generally, and the lturn-buckle assembly 28 is adjusted to render the two sections completely true and plumb. In this position, the coupler 34 can be disconnected since the two sections are connected by tapered spreader bolts 33 and the general wheel assembly of the front sections pl-ace the center of gravity inwardly to obviate any possibility of the assembly falling off the edge of surface 32. With particular reference to FIG. 2, it can be seen that in this position, the inclined mounting of back-section wheels 19 and wheels 29 in track 31 as well as wheels 24 lift them conipletely off surface 32 (or track 31), so that they will not influence the positioning of the front and back sections of the concrete form assembly.

After the concrete has set, the tapered spreader bolts 33 are removed and turn-buckles 28 are collapsed by inserting bolt 42 in bore 43 as shown in FIG. 4.

Here it is pointed out that the entire turn-buckle assembly rotates with the exception of end plates 54 and 56 and threaded extension 48. When the front and back sections have been broken away as shown at section 13 of FIG. l and the cross-section of FIG. 3, the wheels 19, 29 and 24 all make contact with their respective surfaces and holding bracket 34 prevents back section 16 from slipping off. The entire assembly can then be wheeled to the next pouring location which, typically, is `an extension of the last guard rail section poured. When the unit is in place for the next pouring operation, the reverse procedure takes place, i.e., the turn-buckles 28 are lengthened until front sections 21 are approximately vertical. Back sections 16 are then pulled up by coupling assemblies 34, and spacer rods 35 are dropped into place. Final adjustment can then be made by turn-buckles 28 until the assemblies are again true and plumb.

Sealing strips 18 are preferably constructed of neoprene as are bellows 51 (FIG. 4), since, due to its moisture resistance characteristics, it forms a convenient seal against concrete, moisture and grease.

Referring to FIG. 4, bellows 51 prevents any concrete or moisture from entering the inside of the turn-buckle assembly thereby increasing its useful life and convenience.

Referring to FIG. 5, the aluminum casted taper on tapered spreader bolt 33 has proven to be an extremely economical manufacture as opposed to the conventional machine tapered bolts of the prior art. These tapered bolts are formed by casting the tapered aluminum plug section 37 on a section of threaded shaft 34. Washer-nut assembly 36 can then be welded in place on a protruding portion of threaded shaft 34.

It should be understood, of course, that the foregoing disclosure relates only to a preferred embodiment of the invention and that it is intended to cover all changes and modifications of the examples of the invention herein chosen for the purposes of the disclosure which do not constitute departures from the spirit `and scope of the invention.

What is claimed is:

1. A concrete form assembly for pouring raised sections of concrete on a surface comprising:

first and second sides;

ond sides together in a position where the tops of said first and second sides are inclined away from each other and said plurality of wheels are in contact with said surface.

2. The concrete form assembly of claim 1 and further including:

at least one track disposed parallelly to at least one of said first and second sides for guiding said plurality of wheels coupled thereto.

3. The concrete form assembly of claim 2 wherein:

said plurality of wheels coupled to at least one of said first and second sides is adjustably coupled by adjustable coupling means.

4. The concrete form assembly of claim 3 wherein:

said adjustable coupling means comprises a turn-buckle assembly.

5. The concrete form assembly of claim 4 wherein said turn-buckle assembly comprises:

first and second members, said first member telescopically received within said second member; said first member being terminated within said second member in a threaded nut;

a threaded shaft rotatably coupled to a closed end of said second member, said threaded nut being in threadable engagement with said threaded shaft; and

a resilient bellows coupled bet-Ween said first and second members for sealing the entrance of said rst member into said second member.

6. The concrete form assembly of claim 4 wherein said turn-buckle assembly comprises:

first, second and third members, said first member being telescopically received within said second and third members and disposed therebetween;

adjustable coupling means coupling said first and second members;

said first member terminating in a threaded nut within said third member;

a threaded shaft rotatably coupled to a closed end of said third member, said threaded nut being in threadable engagement with said threaded shaft; and

a resilient bellows coupled between said second and third members for effecting a Seal at the entrance of said first member within said Second and third members.

7. The concrete form assembly of claim 1 and further including:

a plurality of tapered spreader bolts coupling and spacing said first and second sides together, each of said tapered spreader bolts comprising:

a section of threaded shaft;

a tapered section of material casted thereon; and

a nut and washer assembly attached to one end thereof.

8. A turn-buckle assembly comprising:

first and second members, said first member -telescopically received within said second member; said first member being terminated within said second member in a threaded nut; and

a threaded shaft rotatably coupled to a closed end of sala second member, said threaded nut being in threadable engagement with said threaded shaft. 9. A turn-buckle assembly comprising:

first, second and third members, said first member being telescopically received within said second 4and third members and disposed therebetween;

5 6 adjustable coupling means coupling said first and sec- References Cited 0nd members; UNITED STATES PATENTS sald rst member termmatmg 1n a threaded nut wxthln 657 802 9/1900 Watson 249 2 Sad thlfd member; 910,515 1/1909 Dwyer 249- 26 a threaded shaft rotatably coupled to a closed end of 5 3 389 646 6/1968 Ruggles 249 5X said third member, said threaded nut being in threadable engagement with said threaded shaft. WILLIAM J. STEPHENSON, Primary Examiner. 1' A tpefed Spreader bolt compnsmg: DE WALDEN W. JONES, Assistant Examiner.

a sectlon of threaded Shaft; a tapered section of material casted thereon; and 10 U.S. Cl. X.R.

a nut and washer assembly attached to one end thereof. 25--131-6 

